C&D Valve CD1808 oil tap for semi-hermetic compressors.
The oil tap can be permanently installed on a semi-hermetic compressor for the changing of oil and testing procedures. The internal pressure helps discharge the oil from the crankcase and acid tests can be made while the compressor is running. It allows the addition by vacuum or removal by pressure of oil while the compressor is running.
You can detect hazardous refrigerant pooling in the crankcase before start-up and control the removal using a compound gauge.
Includes valve core and cap.